board: kontron: pitx-imx8m: Add Kontron pitx-imx8m board support

The Kontron pitx-imx8m is an NXP i.MX8MQ based board in the pITX form factor.

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>

arch/arm/dts/Makefile

@@ -921,7 +921,8 @@ dtb-$(CONFIG_ARCH_IMX8M) += \
 	imx8mq-phanbell.dtb \
 	imx8mp-evk.dtb \
 	imx8mp-phyboard-pollux-rdk.dtb \
-	imx8mq-pico-pi.dtb
+	imx8mq-pico-pi.dtb \
+	imx8mq-kontron-pitx-imx8m.dtb
 
 dtb-$(CONFIG_ARCH_IMXRT) += imxrt1050-evk.dtb \
 	imxrt1020-evk.dtb

arch/arm/dts/imx8mq-kontron-pitx-imx8m-u-boot.dtsi

@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+
+#include "imx8mq-u-boot.dtsi"
+
+&usdhc1 {
+	mmc-hs400-1_8v;
+};
+
+&usdhc2 {
+	sd-uhs-sdr104;
+	sd-uhs-ddr50;
+};

arch/arm/dts/imx8mq-kontron-pitx-imx8m.dts

@@ -0,0 +1,612 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree File for the Kontron pitx-imx8m board.
+ *
+ * Copyright (C) 2021 Heiko Thiery <heiko.thiery@gmail.com>
+ */
+
+/dts-v1/;
+
+#include "imx8mq.dtsi"
+#include <dt-bindings/net/ti-dp83867.h>
+
+/ {
+	model = "Kontron pITX-imx8m";
+	compatible = "kontron,pitx-imx8m", "fsl,imx8mq";
+
+	aliases {
+		i2c0 = &i2c1;
+		i2c1 = &i2c2;
+		i2c2 = &i2c3;
+		mmc0 = &usdhc1;
+		mmc1 = &usdhc2;
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
+		spi0 = &qspi0;
+		spi1 = &ecspi2;
+	};
+
+	chosen {
+		stdout-path = "serial2:115200n8";
+	};
+
+	pcie0_refclk: pcie0-clock {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <100000000>;
+	};
+
+	pcie1_refclk: pcie1-clock {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <100000000>;
+	};
+
+	reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_usdhc2>;
+		regulator-name = "V_3V3_SD";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+};
+
+&ecspi2 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi2 &pinctrl_ecspi2_cs>;
+	cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
+	status = "okay";
+
+	tpm@0 {
+		compatible = "infineon,slb9670";
+		reg = <0>;
+		spi-max-frequency = <43000000>;
+	};
+};
+
+&fec1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fec1>;
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethphy0>;
+	fsl,magic-packet;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy0: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <0>;
+			ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_25_NS>;
+			ti,tx-internal-delay = <DP83867_RGMIIDCTL_2_75_NS>;
+			ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
+			reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+			reset-assert-us = <10>;
+			reset-deassert-us = <280>;
+		};
+	};
+};
+
+&i2c1 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	pmic@8 {
+		compatible = "fsl,pfuze100";
+		fsl,pfuze-support-disable-sw;
+		reg = <0x8>;
+
+		regulators {
+			sw1a_reg: sw1ab {
+				regulator-name = "V_0V9_GPU";
+				regulator-min-microvolt = <825000>;
+				regulator-max-microvolt = <1100000>;
+			};
+
+			sw1c_reg: sw1c {
+				regulator-name = "V_0V9_VPU";
+				regulator-min-microvolt = <825000>;
+				regulator-max-microvolt = <1100000>;
+			};
+
+			sw2_reg: sw2 {
+				regulator-name = "V_1V1_NVCC_DRAM";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-always-on;
+			};
+
+			sw3a_reg: sw3ab {
+				regulator-name = "V_1V0_DRAM";
+				regulator-min-microvolt = <825000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-always-on;
+			};
+
+			sw4_reg: sw4 {
+				regulator-name = "V_1V8_S0";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+
+			swbst_reg: swbst {
+				regulator-name = "NC";
+				regulator-min-microvolt = <5000000>;
+				regulator-max-microvolt = <5150000>;
+			};
+
+			snvs_reg: vsnvs {
+				regulator-name = "V_0V9_SNVS";
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-always-on;
+			};
+
+			vref_reg: vrefddr {
+				regulator-name = "V_0V55_VREF_DDR";
+				regulator-always-on;
+			};
+
+			vgen1_reg: vgen1 {
+				regulator-name = "V_1V5_CSI";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1550000>;
+			};
+
+			vgen2_reg: vgen2 {
+				regulator-name = "V_0V9_PHY";
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <975000>;
+				regulator-always-on;
+			};
+
+			vgen3_reg: vgen3 {
+				regulator-name = "V_1V8_PHY";
+				regulator-min-microvolt = <1675000>;
+				regulator-max-microvolt = <1975000>;
+				regulator-always-on;
+			};
+
+			vgen4_reg: vgen4 {
+				regulator-name = "V_1V8_VDDA";
+				regulator-min-microvolt = <1625000>;
+				regulator-max-microvolt = <1875000>;
+				regulator-always-on;
+			};
+
+			vgen5_reg: vgen5 {
+				regulator-name = "V_3V3_PHY";
+				regulator-min-microvolt = <3075000>;
+				regulator-max-microvolt = <3625000>;
+				regulator-always-on;
+			};
+
+			vgen6_reg: vgen6 {
+				regulator-name = "V_2V8_CAM";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+		};
+	};
+
+	fan-controller@1b {
+		compatible = "maxim,max6650";
+		reg = <0x1b>;
+		maxim,fan-microvolt = <5000000>;
+	};
+
+	rtc@32 {
+		compatible = "microcrystal,rv8803";
+		reg = <0x32>;
+	};
+
+	sensor@4b {
+		compatible = "national,lm75b";
+		reg = <0x4b>;
+	};
+
+	eeprom@51 {
+		compatible = "atmel,24c32";
+		reg = <0x51>;
+		pagesize = <32>;
+	};
+};
+
+&i2c2 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+};
+
+/* M.2 B-key slot */
+&pcie0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pcie0>;
+	reset-gpio = <&gpio1 9 GPIO_ACTIVE_LOW>;
+	clocks = <&clk IMX8MQ_CLK_PCIE1_ROOT>,
+		 <&clk IMX8MQ_CLK_PCIE1_AUX>,
+		 <&clk IMX8MQ_CLK_PCIE1_PHY>,
+		 <&pcie0_refclk>;
+	clock-names = "pcie", "pcie_aux", "pcie_phy", "pcie_bus";
+	status = "okay";
+};
+
+/* Intel Ethernet Controller I210/I211 */
+&pcie1 {
+	clocks = <&clk IMX8MQ_CLK_PCIE2_ROOT>,
+		 <&clk IMX8MQ_CLK_PCIE2_AUX>,
+		 <&clk IMX8MQ_CLK_PCIE2_PHY>,
+		 <&pcie1_refclk>;
+	clock-names = "pcie", "pcie_aux", "pcie_phy", "pcie_bus";
+	fsl,max-link-speed = <1>;
+	status = "okay";
+};
+
+&pgc_gpu {
+	power-supply = <&sw1a_reg>;
+};
+
+&pgc_vpu {
+	power-supply = <&sw1c_reg>;
+};
+
+&qspi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_qspi>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <4>;
+		m25p,fast-read;
+		spi-max-frequency = <50000000>;
+	};
+};
+
+&snvs_pwrkey {
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	assigned-clocks = <&clk IMX8MQ_CLK_UART1>;
+	assigned-clock-parents = <&clk IMX8MQ_SYS1_PLL_80M>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	assigned-clocks = <&clk IMX8MQ_CLK_UART2>;
+	assigned-clock-parents = <&clk IMX8MQ_SYS1_PLL_80M>;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	fsl,uart-has-rtscts;
+	assigned-clocks = <&clk IMX8MQ_CLK_UART3>;
+	assigned-clock-parents = <&clk IMX8MQ_SYS1_PLL_80M>;
+	status = "okay";
+};
+
+&usb3_phy0 {
+	status = "okay";
+};
+
+&usb3_phy1 {
+	status = "okay";
+};
+
+&usb_dwc3_0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usb0>;
+	dr_mode = "otg";
+	hnp-disable;
+	srp-disable;
+	adp-disable;
+	maximum-speed = "high-speed";
+	status = "okay";
+};
+
+&usb_dwc3_1 {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usdhc1 {
+	assigned-clocks = <&clk IMX8MQ_CLK_USDHC1>;
+	assigned-clock-rates = <400000000>;
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+	vqmmc-supply = <&sw4_reg>;
+	bus-width = <8>;
+	non-removable;
+	no-sd;
+	no-sdio;
+	status = "okay";
+};
+
+&usdhc2 {
+	assigned-clocks = <&clk IMX8MQ_CLK_USDHC2>;
+	assigned-clock-rates = <200000000>;
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
+	bus-width = <4>;
+	cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+	wp-gpios = <&gpio2 20 GPIO_ACTIVE_HIGH>;
+	vmmc-supply = <&reg_usdhc2_vmmc>;
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	pinctrl_hog: hoggrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_NAND_CE1_B_GPIO3_IO2		0x19 /* TPM Reset */
+			MX8MQ_IOMUXC_NAND_CE3_B_GPIO3_IO4		0x19 /* USB2 Hub Reset */
+		>;
+	};
+
+	pinctrl_gpio: gpiogrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_NAND_CLE_GPIO3_IO5			0x19 /* GPIO0 */
+			MX8MQ_IOMUXC_NAND_RE_B_GPIO3_IO15		0x19 /* GPIO1 */
+			MX8MQ_IOMUXC_NAND_WE_B_GPIO3_IO17		0x19 /* GPIO2 */
+			MX8MQ_IOMUXC_NAND_WP_B_GPIO3_IO18		0x19 /* GPIO3 */
+			MX8MQ_IOMUXC_NAND_READY_B_GPIO3_IO16		0x19 /* GPIO4 */
+			MX8MQ_IOMUXC_NAND_DATA04_GPIO3_IO10		0x19 /* GPIO5 */
+			MX8MQ_IOMUXC_NAND_DATA05_GPIO3_IO11		0x19 /* GPIO6 */
+			MX8MQ_IOMUXC_NAND_DATA06_GPIO3_IO12		0x19 /* GPIO7 */
+		>;
+	};
+
+	pinctrl_pcie0: pcie0grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x16 /* PCIE_PERST */
+			MX8MQ_IOMUXC_UART4_TXD_GPIO5_IO29		0x16 /* W_DISABLE */
+		>;
+	};
+
+	pinctrl_reg_usdhc2: regusdhc2gpiogrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD2_RESET_B_GPIO2_IO19		0x41
+		>;
+	};
+
+	pinctrl_fec1: fec1grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_ENET_MDC_ENET1_MDC			0x3
+			MX8MQ_IOMUXC_ENET_MDIO_ENET1_MDIO		0x23
+			MX8MQ_IOMUXC_ENET_TD3_ENET1_RGMII_TD3		0x1f
+			MX8MQ_IOMUXC_ENET_TD2_ENET1_RGMII_TD2		0x1f
+			MX8MQ_IOMUXC_ENET_TD1_ENET1_RGMII_TD1		0x1f
+			MX8MQ_IOMUXC_ENET_TD0_ENET1_RGMII_TD0		0x1f
+			MX8MQ_IOMUXC_ENET_RD3_ENET1_RGMII_RD3		0x91
+			MX8MQ_IOMUXC_ENET_RD2_ENET1_RGMII_RD2		0x91
+			MX8MQ_IOMUXC_ENET_RD1_ENET1_RGMII_RD1		0x91
+			MX8MQ_IOMUXC_ENET_RD0_ENET1_RGMII_RD0		0x91
+			MX8MQ_IOMUXC_ENET_TXC_ENET1_RGMII_TXC		0x1f
+			MX8MQ_IOMUXC_ENET_RXC_ENET1_RGMII_RXC		0x91
+			MX8MQ_IOMUXC_ENET_RX_CTL_ENET1_RGMII_RX_CTL	0x91
+			MX8MQ_IOMUXC_ENET_TX_CTL_ENET1_RGMII_TX_CTL	0x1f
+			MX8MQ_IOMUXC_GPIO1_IO11_GPIO1_IO11		0x16
+			MX8MQ_IOMUXC_GPIO1_IO15_GPIO1_IO15		0x16
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_I2C1_SCL_I2C1_SCL			0x4000007f
+			MX8MQ_IOMUXC_I2C1_SDA_I2C1_SDA			0x4000007f
+		>;
+	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_I2C2_SCL_I2C2_SCL			0x4000007f
+			MX8MQ_IOMUXC_I2C2_SDA_I2C2_SDA			0x4000007f
+		>;
+	};
+
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL			0x4000007f
+			MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA			0x4000007f
+		>;
+	};
+
+	pinctrl_qspi: qspigrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_NAND_ALE_QSPI_A_SCLK		0x82
+			MX8MQ_IOMUXC_NAND_CE0_B_QSPI_A_SS0_B		0x82
+			MX8MQ_IOMUXC_NAND_DATA00_QSPI_A_DATA0		0x82
+			MX8MQ_IOMUXC_NAND_DATA01_QSPI_A_DATA1		0x82
+			MX8MQ_IOMUXC_NAND_DATA02_QSPI_A_DATA2		0x82
+			MX8MQ_IOMUXC_NAND_DATA03_QSPI_A_DATA3		0x82
+		>;
+	};
+
+	pinctrl_ecspi2: ecspi2grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI		0x19
+			MX8MQ_IOMUXC_ECSPI2_MISO_ECSPI2_MISO		0x19
+			MX8MQ_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK		0x19
+		>;
+	};
+
+	pinctrl_ecspi2_cs: ecspi2csgrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_ECSPI2_SS0_GPIO5_IO13		0x19
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_UART1_TXD_UART1_DCE_TX		0x49
+			MX8MQ_IOMUXC_UART1_RXD_UART1_DCE_RX		0x49
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_UART2_TXD_UART2_DCE_TX		0x49
+			MX8MQ_IOMUXC_UART2_RXD_UART2_DCE_RX		0x49
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_UART3_TXD_UART3_DCE_TX		0x49
+			MX8MQ_IOMUXC_UART3_RXD_UART3_DCE_RX		0x49
+			MX8MQ_IOMUXC_ECSPI1_SS0_UART3_DCE_RTS_B		0x49
+			MX8MQ_IOMUXC_ECSPI1_MISO_UART3_DCE_CTS_B	0x49
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD1_CLK_USDHC1_CLK			0x83
+			MX8MQ_IOMUXC_SD1_CMD_USDHC1_CMD			0xc3
+			MX8MQ_IOMUXC_SD1_DATA0_USDHC1_DATA0		0xc3
+			MX8MQ_IOMUXC_SD1_DATA1_USDHC1_DATA1		0xc3
+			MX8MQ_IOMUXC_SD1_DATA2_USDHC1_DATA2		0xc3
+			MX8MQ_IOMUXC_SD1_DATA3_USDHC1_DATA3		0xc3
+			MX8MQ_IOMUXC_SD1_DATA4_USDHC1_DATA4		0xc3
+			MX8MQ_IOMUXC_SD1_DATA5_USDHC1_DATA5		0xc3
+			MX8MQ_IOMUXC_SD1_DATA6_USDHC1_DATA6		0xc3
+			MX8MQ_IOMUXC_SD1_DATA7_USDHC1_DATA7		0xc3
+			MX8MQ_IOMUXC_SD1_STROBE_USDHC1_STROBE		0x83
+			MX8MQ_IOMUXC_SD1_RESET_B_USDHC1_RESET_B		0xc1
+		>;
+	};
+
+	pinctrl_usdhc1_100mhz: usdhc1-100grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD1_CLK_USDHC1_CLK			0x8d
+			MX8MQ_IOMUXC_SD1_CMD_USDHC1_CMD			0xcd
+			MX8MQ_IOMUXC_SD1_DATA0_USDHC1_DATA0		0xcd
+			MX8MQ_IOMUXC_SD1_DATA1_USDHC1_DATA1		0xcd
+			MX8MQ_IOMUXC_SD1_DATA2_USDHC1_DATA2		0xcd
+			MX8MQ_IOMUXC_SD1_DATA3_USDHC1_DATA3		0xcd
+			MX8MQ_IOMUXC_SD1_DATA4_USDHC1_DATA4		0xcd
+			MX8MQ_IOMUXC_SD1_DATA5_USDHC1_DATA5		0xcd
+			MX8MQ_IOMUXC_SD1_DATA6_USDHC1_DATA6		0xcd
+			MX8MQ_IOMUXC_SD1_DATA7_USDHC1_DATA7		0xcd
+			MX8MQ_IOMUXC_SD1_STROBE_USDHC1_STROBE		0x8d
+			MX8MQ_IOMUXC_SD1_RESET_B_USDHC1_RESET_B		0xc1
+		>;
+	};
+
+	pinctrl_usdhc1_200mhz: usdhc1-200grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD1_CLK_USDHC1_CLK			0x9f
+			MX8MQ_IOMUXC_SD1_CMD_USDHC1_CMD			0xdf
+			MX8MQ_IOMUXC_SD1_DATA0_USDHC1_DATA0		0xdf
+			MX8MQ_IOMUXC_SD1_DATA1_USDHC1_DATA1		0xdf
+			MX8MQ_IOMUXC_SD1_DATA2_USDHC1_DATA2		0xdf
+			MX8MQ_IOMUXC_SD1_DATA3_USDHC1_DATA3		0xdf
+			MX8MQ_IOMUXC_SD1_DATA4_USDHC1_DATA4		0xdf
+			MX8MQ_IOMUXC_SD1_DATA5_USDHC1_DATA5		0xdf
+			MX8MQ_IOMUXC_SD1_DATA6_USDHC1_DATA6		0xdf
+			MX8MQ_IOMUXC_SD1_DATA7_USDHC1_DATA7		0xdf
+			MX8MQ_IOMUXC_SD1_STROBE_USDHC1_STROBE		0x9f
+			MX8MQ_IOMUXC_SD1_RESET_B_USDHC1_RESET_B		0xc1
+		>;
+	};
+
+	pinctrl_usdhc2_gpio: usdhc2gpiogrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD2_CD_B_GPIO2_IO12		0x41
+			MX8MQ_IOMUXC_SD2_WP_GPIO2_IO20			0x19
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD2_CLK_USDHC2_CLK			0x83
+			MX8MQ_IOMUXC_SD2_CMD_USDHC2_CMD			0xc3
+			MX8MQ_IOMUXC_SD2_DATA0_USDHC2_DATA0		0xc3
+			MX8MQ_IOMUXC_SD2_DATA1_USDHC2_DATA1		0xc3
+			MX8MQ_IOMUXC_SD2_DATA2_USDHC2_DATA2		0xc3
+			MX8MQ_IOMUXC_SD2_DATA3_USDHC2_DATA3		0xc3
+			MX8MQ_IOMUXC_GPIO1_IO04_USDHC2_VSELECT		0xc1
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD2_CLK_USDHC2_CLK			0x8d
+			MX8MQ_IOMUXC_SD2_CMD_USDHC2_CMD			0xcd
+			MX8MQ_IOMUXC_SD2_DATA0_USDHC2_DATA0		0xcd
+			MX8MQ_IOMUXC_SD2_DATA1_USDHC2_DATA1		0xcd
+			MX8MQ_IOMUXC_SD2_DATA2_USDHC2_DATA2		0xcd
+			MX8MQ_IOMUXC_SD2_DATA3_USDHC2_DATA3		0xcd
+			MX8MQ_IOMUXC_GPIO1_IO04_USDHC2_VSELECT		0xc1
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_SD2_CLK_USDHC2_CLK			0x9f
+			MX8MQ_IOMUXC_SD2_CMD_USDHC2_CMD			0xdf
+			MX8MQ_IOMUXC_SD2_DATA0_USDHC2_DATA0		0xdf
+			MX8MQ_IOMUXC_SD2_DATA1_USDHC2_DATA1		0xdf
+			MX8MQ_IOMUXC_SD2_DATA2_USDHC2_DATA2		0xdf
+			MX8MQ_IOMUXC_SD2_DATA3_USDHC2_DATA3		0xdf
+			MX8MQ_IOMUXC_GPIO1_IO04_USDHC2_VSELECT		0xc1
+		>;
+	};
+
+	pinctrl_usb0: usb0grp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_GPIO1_IO12_USB1_OTG_PWR		0x19
+			MX8MQ_IOMUXC_GPIO1_IO13_USB1_OTG_OC		0x19
+		>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B		0xc6
+		>;
+	};
+};

arch/arm/mach-imx/imx8m/Kconfig

@@ -119,6 +119,12 @@ config TARGET_IMX8MN_VAR_SOM
 	select SUPPORT_SPL
 	select IMX8M_DDR4
 
+config TARGET_KONTRON_PITX_IMX8M
+	bool "Support Kontron pITX-imx8m"
+	select BINMAN
+	select IMX8MQ
+	select IMX8M_LPDDR4
+
 config TARGET_VERDIN_IMX8MM
 	bool "Support Toradex Verdin iMX8M Mini module"
 	select BINMAN
@@ -181,6 +187,7 @@ source "board/freescale/imx8mn_evk/Kconfig"
 source "board/freescale/imx8mp_evk/Kconfig"
 source "board/gateworks/venice/Kconfig"
 source "board/google/imx8mq_phanbell/Kconfig"
+source "board/kontron/pitx_imx8m/Kconfig"
 source "board/kontron/sl-mx8mm/Kconfig"
 source "board/phytec/phycore_imx8mm/Kconfig"
 source "board/phytec/phycore_imx8mp/Kconfig"

board/kontron/pitx_imx8m/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_KONTRON_PITX_IMX8M
+
+config SYS_BOARD
+	default "pitx_imx8m"
+
+config SYS_VENDOR
+	default "kontron"
+
+config SYS_CONFIG_NAME
+	default "kontron_pitx_imx8m"
+
+config IMX_CONFIG
+	default "arch/arm/mach-imx/imx8m/imximage.cfg"
+
+endif

board/kontron/pitx_imx8m/MAINTAINERS

@@ -0,0 +1,7 @@
+Kontron pITX-imx8m Board
+M:	Heiko Thiery <heiko.thiery@gmail.com>
+S:	Maintained
+F:	arch/arm/dts/imx8mq-kontron-pitx-imx8m*
+F:	board/kontron/pitx_imx8m/*
+F:	include/configs/kontron_pitx_imx8m.h
+F:	configs/kontron_pitx_imx8m_defconfig

board/kontron/pitx_imx8m/Makefile

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y += pitx_imx8m.o pitx_misc.o
+
+ifdef CONFIG_SPL_BUILD
+obj-y += spl.o pitx_misc.o
+obj-$(CONFIG_IMX8M_LPDDR4) += lpddr4_timing_2gb.o lpddr4_timing_4gb.o
+endif

board/kontron/pitx_imx8m/pitx_imx8m.c

@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include "pitx_misc.h"
+#include <common.h>
+#include <init.h>
+#include <mmc.h>
+#include <miiphy.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx8mq_pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm-generic/gpio.h>
+#include <asm/mach-imx/gpio.h>
+#include <asm/mach-imx/iomux-v3.h>
+#include <linux/delay.h>
+
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL	(PAD_CTL_DSE6 | PAD_CTL_FSEL1)
+#define WDOG_PAD_CTRL	(PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE)
+
+static iomux_v3_cfg_t const wdog_pads[] = {
+	IMX8MQ_PAD_GPIO1_IO02__WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const uart_pads[] = {
+	IMX8MQ_PAD_UART3_RXD__UART3_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
+	IMX8MQ_PAD_UART3_TXD__UART3_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
+	IMX8MQ_PAD_ECSPI1_SS0__UART3_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
+	IMX8MQ_PAD_ECSPI1_MISO__UART3_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+int board_early_init_f(void)
+{
+	struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
+
+	imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
+	set_wdog_reset(wdog);
+
+	imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
+
+	return 0;
+}
+
+int board_phys_sdram_size(phys_size_t *memsize)
+{
+	int variant = 0;
+
+	variant = get_pitx_board_variant();
+
+	switch(variant) {
+	case 2:
+		*memsize = 0x80000000;
+		break;
+	case 3:
+		*memsize = 0x100000000;
+		break;
+	default:
+		printf("Unknown DDR type!!!\n");
+		*memsize = 0x40000000;
+		break;
+	}
+
+	debug("Memsize: %d MiB\n", (int)(*memsize >> 20));
+
+	return 0;
+}
+
+
+#ifdef CONFIG_FEC_MXC
+#define FEC_RST_PAD IMX_GPIO_NR(1, 11)
+static iomux_v3_cfg_t const fec1_rst_pads[] = {
+	IMX8MQ_PAD_GPIO1_IO11__GPIO1_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static void setup_iomux_fec(void)
+{
+	imx_iomux_v3_setup_multiple_pads(fec1_rst_pads,
+					 ARRAY_SIZE(fec1_rst_pads));
+}
+
+static int setup_fec(void)
+{
+	struct iomuxc_gpr_base_regs *gpr =
+		(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
+
+	setup_iomux_fec();
+
+	/* Use 125M anatop REF_CLK1 for ENET1, not from external */
+	clrsetbits_le32(&gpr->gpr[1], BIT(13) | BIT(17), 0);
+	return set_clk_enet(ENET_125MHZ);
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+	unsigned int val;
+
+	/*
+	 * Set LED configuration register 1:
+	 * LED2_SEL: 0b1011 (link established, blink on activity)
+	 */
+	val = phy_read(phydev, MDIO_DEVAD_NONE, 0x18);
+	val &= 0xf0ff;
+	phy_write(phydev, MDIO_DEVAD_NONE, 0x18, val | (0xb << 8));
+
+	if (phydev->drv->config)
+		phydev->drv->config(phydev);
+	return 0;
+}
+#endif
+
+int board_init(void)
+{
+#ifdef CONFIG_FEC_MXC
+	setup_fec();
+#endif
+
+#if defined(CONFIG_USB_DWC3) || defined(CONFIG_USB_XHCI_DWC3)
+	init_usb_clk();
+#endif
+
+	return 0;
+}
+
+#ifdef CONFIG_MISC_INIT_R
+#define TPM_RESET    IMX_GPIO_NR(3, 2)
+#define USBHUB_RESET IMX_GPIO_NR(3, 4)
+
+static void reset_device_by_gpio(const char *label, int pin, int delay_ms)
+{
+	gpio_request(pin, label);
+	gpio_direction_output(pin, 0);
+	mdelay(delay_ms);
+	gpio_direction_output(pin, 1);
+}
+
+int misc_init_r(void)
+{
+	/*
+	 * reset TPM chip (Infineon SLB9670) as required by datasheet
+	 * (60ms minimum Reset Inactive Time, 70ms implemented)
+	 */
+	reset_device_by_gpio("tpm_reset", TPM_RESET, 70);
+
+	/*
+	 * reset USB hub as required by datasheet
+	 * (3ms minimum reset duration, 10ms implemented)
+	 */
+	reset_device_by_gpio("usbhub_reset", USBHUB_RESET, 10);
+
+	return 0;
+}
+#endif
+
+int board_mmc_get_env_dev(int devno)
+{
+	return devno;
+}
+
+uint mmc_get_env_part(struct mmc *mmc)
+{
+	/* part 1 for eMMC, part 1 for SD card */
+	return (mmc_get_env_dev() == 0) ? 1 : 0;
+}
+
+int board_late_init(void)
+{
+	return 0;
+}

board/kontron/pitx_imx8m/pitx_misc.c

@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0+
+#include <asm/arch/imx8mq_pins.h>
+#include <asm-generic/gpio.h>
+#include <asm/mach-imx/gpio.h>
+
+/*
+ *   BRD_REV1   BRD_REV0
+ *      0         0         n/a
+ *      0         1         n/a
+ *      1         0         2GB LPDDR4
+ *      1         1         4GB LPDDR4
+ */
+
+#define BRD_REV0  IMX_GPIO_NR(5, 0)
+#define BRD_REV1  IMX_GPIO_NR(5, 1)
+
+static iomux_v3_cfg_t const brdrev_pads[] = {
+	IMX8MQ_PAD_SAI3_TXC__GPIO5_IO0 | MUX_PAD_CTRL(PAD_CTL_PUE),
+	IMX8MQ_PAD_SAI3_TXD__GPIO5_IO1 | MUX_PAD_CTRL(PAD_CTL_PUE),
+	IMX8MQ_PAD_SAI3_MCLK__GPIO5_IO2 | MUX_PAD_CTRL(PAD_CTL_PUE),
+};
+
+int get_pitx_board_variant(void)
+{
+	int variant = 0;
+
+	imx_iomux_v3_setup_multiple_pads(brdrev_pads, ARRAY_SIZE(brdrev_pads));
+
+	gpio_request(BRD_REV0, "BRD_REV0");
+	gpio_direction_input(BRD_REV0);
+	gpio_request(BRD_REV1, "BRD_REV1");
+	gpio_direction_input(BRD_REV1);
+
+	variant |= !!gpio_get_value(BRD_REV0) << 0;
+	variant |= !!gpio_get_value(BRD_REV1) << 1;
+
+	return variant;
+}

board/kontron/pitx_imx8m/pitx_misc.h

@@ -0,0 +1,6 @@
+#ifndef __PITX_MISC_H
+#define __PITX_MISC_H
+
+int get_pitx_board_variant(void);
+
+#endif

board/kontron/pitx_imx8m/spl.c

@@ -0,0 +1,299 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <common.h>
+#include <errno.h>
+#include <fsl_esdhc_imx.h>
+#include <hang.h>
+#include <init.h>
+#include <log.h>
+#include <spl.h>
+#include <asm/arch/ddr.h>
+#include <asm/arch/imx8mq_pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/clock.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/mach-imx/iomux-v3.h>
+#include <asm/mach-imx/gpio.h>
+#include <asm/mach-imx/mxc_i2c.h>
+#include <linux/delay.h>
+#include <power/pmic.h>
+#include <power/pfuze100_pmic.h>
+
+#include "pitx_misc.h"
+
+extern struct dram_timing_info dram_timing_2gb;
+extern struct dram_timing_info dram_timing_4gb;
+
+DECLARE_GLOBAL_DATA_PTR;
+
+
+static void spl_dram_init(void)
+{
+	struct dram_timing_info *dram_timing;
+	int variant = 0, size;
+
+	variant = get_pitx_board_variant();
+
+	switch(variant) {
+	case 2:
+		dram_timing = &dram_timing_2gb;
+		size = 2;
+		break;
+	case 3:
+		dram_timing = &dram_timing_4gb;
+		size = 4;
+		break;
+	default:
+		printf("Unknown DDR type (%d)\n", variant);
+		return;
+	};
+
+	/* ddr init */
+	ddr_init(dram_timing);
+}
+
+#define I2C_PAD_CTRL	(PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE)
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+static struct i2c_pads_info i2c_pad_info1 = {
+	.scl = {
+		.i2c_mode = IMX8MQ_PAD_I2C1_SCL__I2C1_SCL | PC,
+		.gpio_mode = IMX8MQ_PAD_I2C1_SCL__GPIO5_IO14 | PC,
+		.gp = IMX_GPIO_NR(5, 14),
+	},
+	.sda = {
+		.i2c_mode = IMX8MQ_PAD_I2C1_SDA__I2C1_SDA | PC,
+		.gpio_mode = IMX8MQ_PAD_I2C1_SDA__GPIO5_IO15 | PC,
+		.gp = IMX_GPIO_NR(5, 15),
+	},
+};
+
+#if CONFIG_IS_ENABLED(MMC)
+#define USDHC2_CD_GPIO	IMX_GPIO_NR(2, 12)
+#define USDHC1_PWR_GPIO IMX_GPIO_NR(2, 10)
+#define USDHC2_PWR_GPIO IMX_GPIO_NR(2, 19)
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+	int ret = 0;
+
+	switch (cfg->esdhc_base) {
+	case USDHC1_BASE_ADDR:
+		/* the eMMC does not have a CD pin */
+		ret = 1;
+	case USDHC2_BASE_ADDR:
+		ret = !gpio_get_value(USDHC2_CD_GPIO);
+	}
+
+	return ret;
+}
+
+
+#define USDHC_PAD_CTRL	(PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE | \
+			 PAD_CTL_FSEL2)
+#define USDHC_GPIO_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_DSE1)
+
+static iomux_v3_cfg_t const usdhc1_pads[] = {
+	IMX8MQ_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IMX8MQ_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IMX8MQ_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IMX8MQ_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IMX8MQ_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IMX8MQ_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IMX8MQ_PAD_SD1_DATA4__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IMX8MQ_PAD_SD1_DATA5__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IMX8MQ_PAD_SD1_DATA6__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IMX8MQ_PAD_SD1_DATA7__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	IMX8MQ_PAD_SD1_RESET_B__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const usdhc2_pads[] = {
+	IMX8MQ_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */
+	IMX8MQ_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */
+	IMX8MQ_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */
+	IMX8MQ_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */
+	IMX8MQ_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0x16 */
+	IMX8MQ_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), /* 0xd6 */
+	IMX8MQ_PAD_SD2_CD_B__GPIO2_IO12 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL),
+	IMX8MQ_PAD_SD2_RESET_B__GPIO2_IO19 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL),
+};
+
+static struct fsl_esdhc_cfg usdhc_cfg[2] = {
+	{USDHC1_BASE_ADDR, 0, 8},
+	{USDHC2_BASE_ADDR, 0, 4},
+};
+
+int board_mmc_init(struct bd_info *bis)
+{
+	int i, ret;
+	/*
+	 * According to the board_mmc_init() the following map is done:
+	 * (U-Boot device node)    (Physical Port)
+	 * mmc0                    USDHC1
+	 * mmc1                    USDHC2
+	 */
+	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
+		switch (i) {
+		case 0:
+			init_clk_usdhc(0);
+			usdhc_cfg[0].sdhc_clk = mxc_get_clock(USDHC1_CLK_ROOT);
+			imx_iomux_v3_setup_multiple_pads(usdhc1_pads,
+							 ARRAY_SIZE(usdhc1_pads));
+			gpio_request(USDHC1_PWR_GPIO, "usdhc1_reset");
+			gpio_direction_output(USDHC1_PWR_GPIO, 0);
+			udelay(500);
+			gpio_direction_output(USDHC1_PWR_GPIO, 1);
+			break;
+		case 1:
+			init_clk_usdhc(1);
+			usdhc_cfg[1].sdhc_clk = mxc_get_clock(USDHC2_CLK_ROOT);
+			imx_iomux_v3_setup_multiple_pads(usdhc2_pads,
+							 ARRAY_SIZE(usdhc2_pads));
+			gpio_request(USDHC2_PWR_GPIO, "usdhc2_reset");
+			gpio_direction_output(USDHC2_PWR_GPIO, 0);
+			udelay(500);
+			gpio_direction_output(USDHC2_PWR_GPIO, 1);
+			break;
+		default:
+			printf("Warning: you configured more USDHC controllers "
+				"(%d) than supported by the board\n", i + 1);
+			return -EINVAL;
+		}
+
+		ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+const char *spl_board_loader_name(u32 boot_device)
+{
+	switch (boot_device) {
+	case BOOT_DEVICE_MMC1:
+		return "eMMC";
+	case BOOT_DEVICE_MMC2:
+		return "SD card";
+	default:
+		return NULL;
+	}
+}
+#endif
+
+#if CONFIG_IS_ENABLED(POWER_LEGACY)
+#define I2C_PMIC	0
+
+static int pfuze_mode_init(struct pmic *p, u32 mode)
+{
+	unsigned char offset, i, switch_num;
+	u32 id;
+	int ret;
+
+	pmic_reg_read(p, PFUZE100_DEVICEID, &id);
+	id = id & 0xf;
+
+	if (id == 0) {
+		switch_num = 6;
+		offset = PFUZE100_SW1CMODE;
+	} else if (id == 1) {
+		switch_num = 4;
+		offset = PFUZE100_SW2MODE;
+	} else {
+		printf("Not supported, id=%d\n", id);
+		return -EINVAL;
+	}
+
+	ret = pmic_reg_write(p, PFUZE100_SW1ABMODE, mode);
+	if (ret < 0) {
+		printf("Set SW1AB mode error!\n");
+		return ret;
+	}
+
+	for (i = 0; i < switch_num - 1; i++) {
+		ret = pmic_reg_write(p, offset + i * SWITCH_SIZE, mode);
+		if (ret < 0) {
+			printf("Set switch 0x%x mode error!\n",
+			       offset + i * SWITCH_SIZE);
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+int power_init_board(void)
+{
+	struct pmic *p;
+	int ret;
+	unsigned int reg;
+
+	ret = power_pfuze100_init(I2C_PMIC);
+	if (ret)
+		return -ENODEV;
+
+	p = pmic_get("PFUZE100");
+	ret = pmic_probe(p);
+	if (ret)
+		return -ENODEV;
+
+	pmic_reg_read(p, PFUZE100_SW3AVOL, &reg);
+	if ((reg & 0x3f) != 0x18) {
+		reg &= ~0x3f;
+		reg |= 0x18;
+		pmic_reg_write(p, PFUZE100_SW3AVOL, reg);
+	}
+
+	ret = pfuze_mode_init(p, APS_PFM);
+	if (ret < 0)
+		return ret;
+
+	/* set SW3A standby mode to off */
+	pmic_reg_read(p, PFUZE100_SW3AMODE, &reg);
+	reg &= ~0xf;
+	reg |= APS_OFF;
+	pmic_reg_write(p, PFUZE100_SW3AMODE, reg);
+
+	return 0;
+}
+#endif
+
+void board_init_f(ulong dummy)
+{
+	int ret;
+
+	/* Clear global data */
+	memset((void *)gd, 0, sizeof(gd_t));
+
+	arch_cpu_init();
+
+	init_uart_clk(2);
+
+	board_early_init_f();
+
+	timer_init();
+
+	preloader_console_init();
+
+	/* Clear the BSS. */
+	memset(__bss_start, 0, __bss_end - __bss_start);
+
+	ret = spl_init();
+	if (ret) {
+		debug("spl_init() failed: %d\n", ret);
+		hang();
+	}
+
+	enable_tzc380();
+
+	setup_i2c(0, 100000, 0x7f, &i2c_pad_info1);
+
+#if CONFIG_IS_ENABLED(POWER_LEGACY)
+	power_init_board();
+#endif
+
+	spl_dram_init();
+
+	board_init_r(NULL, 0);
+}

configs/kontron_pitx_imx8m_defconfig

@@ -0,0 +1,97 @@
+CONFIG_ARM=y
+CONFIG_ARCH_IMX8M=y
+CONFIG_SYS_TEXT_BASE=0x40200000
+CONFIG_SYS_MALLOC_LEN=0x600000
+CONFIG_SPL_GPIO=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_ENV_SIZE=0x4000
+CONFIG_ENV_OFFSET=0x300000
+CONFIG_SYS_I2C_MXC_I2C1=y
+CONFIG_SYS_I2C_MXC_I2C2=y
+CONFIG_SYS_I2C_MXC_I2C3=y
+CONFIG_DM_GPIO=y
+CONFIG_DEFAULT_DEVICE_TREE="imx8mq-kontron-pitx-imx8m"
+CONFIG_SPL_TEXT_BASE=0x7E1000
+CONFIG_TARGET_KONTRON_PITX_IMX8M=y
+CONFIG_SPL_MMC=y
+CONFIG_SPL_SERIAL=y
+CONFIG_SPL_DRIVERS_MISC=y
+CONFIG_SPL=y
+CONFIG_IMX_BOOTAUX=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_SYS_LOAD_ADDR=0x40480000
+CONFIG_FIT=y
+CONFIG_SPL_FIT_PRINT=y
+CONFIG_SPL_LOAD_FIT=y
+# CONFIG_USE_SPL_FIT_GENERATOR is not set
+CONFIG_BOARD_EARLY_INIT_F=y
+CONFIG_BOARD_LATE_INIT=y
+CONFIG_MISC_INIT_R=y
+CONFIG_SPL_I2C=y
+CONFIG_SPL_POWER=y
+CONFIG_SPL_WATCHDOG=y
+# CONFIG_BOOTM_NETBSD is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+CONFIG_CMD_NVEDIT_EFI=y
+# CONFIG_CMD_CRC32 is not set
+CONFIG_CMD_DFU=y
+CONFIG_CMD_FUSE=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_GPT=y
+# CONFIG_RANDOM_UUID is not set
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_USB=y
+# CONFIG_CMD_MDIO is not set
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_EFIDEBUG=y
+CONFIG_CMD_RTC=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_REGULATOR=y
+CONFIG_CMD_HASH=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_OF_CONTROL=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_SAVED_DRAM_TIMING_BASE=0x40000000
+CONFIG_DFU_MMC=y
+CONFIG_MXC_GPIO=y
+CONFIG_DM_I2C=y
+CONFIG_SPL_SYS_I2C_LEGACY=y
+CONFIG_SUPPORT_EMMC_BOOT=y
+CONFIG_FSL_USDHC=y
+CONFIG_PHYLIB=y
+CONFIG_PHY_TI=y
+CONFIG_DM_ETH=y
+CONFIG_PHY_GIGE=y
+CONFIG_FEC_MXC=y
+CONFIG_MII=y
+CONFIG_PHY=y
+CONFIG_PHY_IMX8MQ_USB=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_IMX8M=y
+CONFIG_SPL_POWER_LEGACY=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_IMX8M_POWER_DOMAIN=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_SPL_POWER_I2C=y
+CONFIG_DM_RESET=y
+CONFIG_DM_RTC=y
+CONFIG_RTC_RV8803=y
+CONFIG_DM_SERIAL=y
+CONFIG_MXC_UART=y
+CONFIG_DM_THERMAL=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_DWC3=y
+CONFIG_USB_DWC3=y
+CONFIG_EFI_SET_TIME=y
+CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
+CONFIG_EFI_CAPSULE_ON_DISK=y
+CONFIG_EFI_IGNORE_OSINDICATIONS=y
+CONFIG_EFI_CAPSULE_FIRMWARE_FIT=y

doc/board/kontron/index.rst

@@ -6,6 +6,7 @@ Kontron
 .. toctree::
    :maxdepth: 2
 
+   pitx-imx8m
    sl28
    sl-mx6ul
    sl-mx8mm

doc/board/kontron/pitx-imx8m.rst

@@ -0,0 +1,67 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Kontron pitx-imx8m
+==================
+
+The Kontron pitx-imx8m is an embedded board with an i.MX8MQ in the pITX
+form factor.
+
+The board has two Ethernet ports, USB, HDMI/LVDS, m.2 slot, SD card, CAN,
+RS232 and much more.
+
+Quick Start
+-----------
+
+- Get and build the ARM Trusted firmware binary
+- Get DDR and HDMI firmware
+- Build U-Boot
+- Install on SD card
+- Boot
+
+Get and build the ARM Trusted firmware binary
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Note: builddir is U-Boot build directory (source directory for in-tree builds)
+
+.. code-block:: bash
+
+    $ git clone https://github.com/ARM-software/arm-trusted-firmware.git
+    $ git checkout v2.5
+    $ make PLAT=imx8mq ARCH=aarch64 CROSS_COMPILE=aarch64-linux-gnu- bl31
+    $ cp build/imx8mq/release/bl31.bin $(builddir)
+
+Get DDR and HDMI firmware
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Note: builddir is U-Boot build directory (source directory for in-tree builds)
+
+.. code-block:: bash
+
+    $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.11.bin
+    $ chmod +x firmware-imx-8.11.bin
+    $ ./firmware-imx-8.11
+    $ cp firmware-imx-8.11/firmware/ddr/synopsys/lpddr4*.bin $(builddir)
+    $ cp firmware-imx-8.11/firmware/hdmi/cadence/signed_hdmi_imx8m.bin $(builddir)
+
+Build U-Boot
+^^^^^^^^^^^^
+
+.. code-block:: bash
+
+    $ make kontron_pitx_imx8m_defconfig
+    $ make CROSS_COMPILE=aarch64-linux-gnu-
+
+Install on SD card
+^^^^^^^^^^^^^^^^^^
+
+
+Burn the flash.bin to SD card at an offset of 33 KiB:
+
+.. code-block:: bash
+
+    $ sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=33
+
+Boot
+^^^^
+
+Set the boot source selection to SD card boot and power on the board.

include/configs/kontron_pitx_imx8m.h

@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef __KONTRON_PITX_IMX8M_H
+#define __KONTRON_PITX_IMX8M_H
+
+#include <linux/sizes.h>
+#include <linux/stringify.h>
+#include <asm/arch/imx-regs.h>
+
+#define CONFIG_SYS_BOOTM_LEN		(32 * SZ_1M)
+
+#define CONFIG_SPL_MAX_SIZE		(124 * SZ_1K)
+#define CONFIG_SYS_MONITOR_LEN		(512 * SZ_1K)
+#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR
+#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR	0x300
+
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SPL_LDSCRIPT		"arch/arm/cpu/armv8/u-boot-spl.lds"
+#define CONFIG_SPL_STACK		0x187FF0
+#define CONFIG_SPL_BSS_START_ADDR       0x00180000
+#define CONFIG_SPL_BSS_MAX_SIZE         SZ_8K
+#define CONFIG_SYS_SPL_MALLOC_START     0x42200000
+#define CONFIG_SYS_SPL_MALLOC_SIZE      SZ_512K
+#define CONFIG_SYS_SPL_PTE_RAM_BASE     0x41580000
+
+/* malloc f used before GD_FLG_FULL_MALLOC_INIT set */
+#define CONFIG_MALLOC_F_ADDR		0x182000
+/* For RAW image gives a error info not panic */
+#define CONFIG_SPL_ABORT_ON_RAW_IMAGE
+
+
+#define CONFIG_POWER_PFUZE100
+#define CONFIG_POWER_PFUZE100_I2C_ADDR  0x08
+#endif
+
+#define CONFIG_REMAKE_ELF
+
+/* ENET1 Config */
+#if defined(CONFIG_CMD_NET)
+#define CONFIG_ETHPRIME                 "FEC"
+
+#define CONFIG_FEC_XCV_TYPE             RGMII
+#define CONFIG_FEC_MXC_PHYADDR          0
+#define FEC_QUIRK_ENET_MAC
+
+#define IMX_FEC_BASE			0x30BE0000
+#define PHY_ANEG_TIMEOUT		20000
+
+#endif
+
+#define ENV_MEM_LAYOUT_SETTINGS \
+	"kernel_addr_r=0x40880000\0" \
+	"fdt_addr_r=0x43000000\0" \
+	"scriptaddr=0x43500000\0" \
+	"initrd_addr=0x43800000\0" \
+	"pxefile_addr_r=0x43500000\0" \
+	"bootm_size=0x10000000\0" \
+
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 0) \
+	func(MMC, mmc, 1) \
+	func(USB, usb, 0) \
+	func(DHCP, dhcp, na) \
+	func(PXE, pxe, 0)
+
+#include <config_distro_bootcmd.h>
+
+/* Initial environment variables */
+#define CONFIG_EXTRA_ENV_SETTINGS		\
+	"image=Image\0" \
+	"console=ttymxc2,115200\0" \
+	"boot_fdt=try\0" \
+	"fdtfile=freescale/imx8mq-kontron-pitx-imx8m.dtb\0" \
+	"dfu_alt_info=mmc 0=flash-bin raw 0x42 0x1000 mmcpart 1\0"\
+	ENV_MEM_LAYOUT_SETTINGS \
+	BOOTENV
+
+
+#define CONFIG_SYS_INIT_RAM_ADDR        0x40000000
+#define CONFIG_SYS_INIT_RAM_SIZE        0x80000
+#define CONFIG_SYS_INIT_SP_OFFSET \
+	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR \
+	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+#define CONFIG_SYS_SDRAM_BASE           0x40000000
+#define PHYS_SDRAM                      0x40000000
+#define PHYS_SDRAM_SIZE			0xC0000000 /* 3GB DDR */
+
+#define CONFIG_MXC_UART_BASE		UART3_BASE_ADDR
+
+#define CONFIG_SYS_FSL_USDHC_NUM	2
+#define CONFIG_SYS_FSL_ESDHC_ADDR       0
+
+#define CONFIG_OF_SYSTEM_SETUP
+
+#endif